See the truth ! Actually Mohashastra and Mayavada refers to those Vaishnawas who see difference between Hari and Shiva . Shiva deludes Vaishnawa by propagating shastras which says that vishnu and shiva are different .
See the proofs from Rudra gita ( Rudra gita is a part of Bhagavata and Varaha Purana .)
Shiva says : " There is no god above Him in the past, present or future. He who is Visnu is Brahma and he who is Brahma is Maheswara, too. "
" Men who are learned in the three Vedas and adept in sacrifices have declared
that he, who draws a distinction among us three, is sinful and wicked, and faces
downfall. "
" He asked them all as to what He might do for them. They then bowed to Him
and said :‘Oh great God! All people have now been liberated. How then will creation proceed and who will go to hell?’ "
" Thus asked by Devas, Lord Janardana told them: ‘During the first three yugas,
most people reach Me. "
" But in the last yuga (Kali), those who attain me will be a few. I then create the
force of stupefaction which deludes people. "
" Oh you Rudra! You produce the Mohasastra (the science of stupefaction). With
a little effort, you produce delusion’. "
" So saying, the great Lord concealed Himself, and I was made very manifest.
" From then onwards people became more interested in the Sastras which I
promulgated.Following the Vedic path, worshipping Lord Narayana and finding unity in all the three gods, people get liberation. "
" Those who consider me as different from Visnu or Brahma are driven to do sinful
deeds and reach hell. "
" It is for the delusion of those who are outside the Vedic fold that I introduced the Sastras called Naya, Siddhanta, etc. "
" He, who knows this and also knows me as Narayana, the lotus-born Brahma
and myself as one made different by the qualities, has right knowledge. We are
essentially One; it is ignorance that produces the sense of difference. "
" Rudra said: Oh learned men! Whatever is offered in the sacrifice for me is shared by all the three of us.
Oh great sages! There is no diversity among us, and discerning people do not
find any such thing.
Thus said by Rudra, Oh king! All the sages asked him about the purpose of
Mohasastra (which deludes people).
"
The sages said: You have produced a separate Sastra to stupefy the world. Be pleased to tell us why you have done this. "
" Rudra said:
10. There is in Bharatavarsa a forest called Dandaka. There a brahmana named
Gautama was performing severe penance.
11. Brahma was very much pleased at this, and he asked the ascetic to seek a boon
for him.
12. Thus asked by Brahma, the creator of the worlds, Gautama requested, ‘Give me
abundance of crops and grain’. And Brahma granted it.
13-14. Getting this boon, the ascetic built a large hermitage at Satasrnga, and there
he used to reap every morning the ripe grain and cook it at noon and offer
sumptuous food to brahmanas.
15. He was doing this for a long time. Once a severe drought occurred which lasted
twelve years.
16. Distressed at this drought and very much famished, all the sages in the forest
went to Gautama.
Seeing them all in his hermitage, Gautama bowed to them and asked them to
stay there.
18. They remained there eating a variety of food till the drought was over.
19. Then those sages felt a desire to undertake a pilgrimage.
20. Knowing this, a great sage Marica spoke to the sage Sandilya.
Marica said:
21. ‘Oh Sandilya! Sage Gautama is like our father. Without telling him, we should
not leave this place, for penance (elsewhere)’.
22. When told thus, the sages laughed and said, ‘Have we sold ourselves to him by
taking his food’?
23. Again they discussed of leaving the place and decided to do so. They also
created a magical cow and left it at the hermitage.
24. Seeing that cow wandering in the hermitage, Gautama took some water in his
hand and splashed it on its body.
25. Then that magical cow fell down like a drop of water.
26. Seeing it thus hurt, he turned to the sages starting to leave and asked them with
reverence:
27. ‘Oh brahmanas! Please tell me why you are going to leave me, your devotee’.
The sages said:
28.
‘Oh sage! So long as the sin of killing the cow remains in you, we shall not eat
your food’.
29. Told thus, Gautama, who knew what was righteous, asked them to tell him what
the atonement was for the sin of having killed the cow.
The sages said:
30. ‘This cow is not dead but has only become unconscious. Bathed in the water of
Ganga, it will doubtless rise up.
31. The atonement is only with regard to one that is killed. For this sin, only penance
may be performed. Please do not be angry’. So saying they all left.
32. When they were gone, Gautama went to the great mountain Himalaya to perform severe penance.
33. For one hundred and one years I was worshipped, and, being pleased by that, I
asked him to seek a boon.
34. He sought that the river Ganga in my matted hair be made to follow him.
35. I then let off the river from one part of my head and Gautama let it to the place
where the cow was lying.
36. Washed by that water the cow rose up, and the river became great with holy
water, and passing through sacred places.
37. Seeing that great wonder, the seven sages came there in aerial cars saying
‘Well done, well done.
38. Blessed are you, oh Gautama! Who is there equal to you in that you have
brought this Ganga to this Dandaka forest?’
39. Then Gautama wondered as to how he had become the cause of hurting the
animal.
40. He realized that it was all the result of the magic adopted by the sages (who had
lived in his hermitage), and cursed them who were sages only in appearance.
41. ‘You will all be outside the three Vedas and ineligible to perform Vedic rites’.
42. Hearing the curse of Gautama thus pronounced on those sages, the seven
sages told him, ‘although your words will have due effect, you should not mean it for
all time.
43. In the Kali age, let the brahmanas become such as to be ungrateful to those who
do them good.
44. Burnt by the fire of your curse, let them, in the Kali age, become devotees of the
Lord.
45. Let them be outside the fold of Vedic rites. Let this river also have the second
name as Godavari.
46. In Kaliyuga, those, who come to this river and give gifts of cows and other
materials according to their capacity, will delight themselves with the gods.
47-48. If, at the time when Jupiter is in Leo, one takes bath there and propitiates the manes according to the scriptures, they (the manes) will go to heaven even if they have fallen in hell, and those who are already in heaven will attain liberation.
49. You will attain great fame, and gain eternal liberation’.
50. Then the seven sages came to Kailasa where I was with Parvati, and told me:
51. ‘In the Kali age, many will have your form with crown of matted hair, assuming
ghostly forms and wearing lingas.
52. For their sake, give a Sastra to redeem them from the influence of Kali’.
53. Requested by them thus, I produced a Samhita which contained rules for Vedic
rites as well.
54. This Samhita is named Nissvasa; and Babhravya and Sandila are absorbed in it.
55. Deluded by me, people, out of selfish motives, will promulgate their own Sastras
in Kaliyuga.
56. The Nissavasasamhita with a lakh of verses alone is authoritative, and that gives
the discipline regarding Pasupata.
57. This follows the path of the Veda, and whatever is outside its scope should be
considered as impure.
58. The Vedantins in Kaliyuga resort to Rudra. Fickle-minded people frame their
own Sastras, but I do not remain with them.
59-60. In yore, I assumed the fierce Bhairava form for the sake of the gods and for
the annihilation of the wicked demons, and laughed terribly.
61. Out of my tears, which fell then on the earth, raised innumerable terrible beings.
62. They were fond of flesh, wine and physical pleasure, and were out to create
terror in the world.
63. The brahmanas cursed by Gautama will be born in their clan. Among them,
those, who follow the rules I have laid down and are of good conduct, will attain
heaven and get liberation.
64. Those, who doubt the doctrine I have laid down, ridicule my followers and go to hell.
65. Formerly burnt by the curse of Gautama and now by my words, they go to hell
and we need not doubt this.
Varaha said:
1. Agastya asked the omniscient Rudra,
‘Who is the most ancient one and the
creator of everything?’
Agastya said:
2. You, Brahma and Visnu constitute the Trio and the three Vedas. Like the flame of
the lamp, you illumine everything and permeate all Sastras.
3. Oh God! Tell me at which time you are Rudra, at which time Brahma and at which
time Visnu.
Rudra said:
4. Visnu is the Supreme Brahman in Veda and Sastras. He is spoken of as having
three forms. But this is not known to the ignorant.
5. From the root vis meaning ‘to enter’, with the nominative singular suffix we get the word ‘Visnu’. He is the eternal and the supreme among all gods.
6. This Visnu who is spoken of as having a ten-fold form as well as of a single form
is the Aditya with all yogic powers. The great God, for the sake of Devas, assumes human form in every yuga and praises me.
" The Supreme Brahman is enshrined in the names Narayana, Siva, Visnu,
Sankara and Purusottama. "
" I am Visnu as well as Brahma with the eternal Veda. The three gods are really
one, and wise men should not consider them as different. "
" He who considers otherwise is a sinner and he goes to the terrible hell. "
" I am Brahma and Visnu, and the Veda - Rig, Yajur and Sama. The difference is
only in name. "