It's worship all the same. That's my point. Define worship. It is a subjective experience that every religionist experiences and an experience we have in common. We may know it by a different name or express it differently but worship is worship.
Example. They all have, we will call it mystical, experiences. Each experience is shaped by their TLC. As a result, they do not have a common foundation.
1. Catholicism
The core foundation of The Church is Jesus Christ.
The core foundation of the body of Christ is the Catholic Church
The core foundation of belief and living in Christ are the sacraments of Christ
The salvation you get from Christ comes from the Eucharist.
These are Catholic
foundations. They are expressions embedded in their beliefs and scripture and cannot at all be separated from each other.
2. Buddhism
Let's take Nichiren Buddhism. It's a Ten Tai Mahayana sect that believe in devoting their worship and practice to a inscribed summary of The Buddha's Dharma.
The belief is that everyone is in a cycle of cause and affect/rebirth (in Japanese, Nam Myoho Renge Kyo -Diamoku-) This is The Buddha's main teaching. By chanting and personalizing this teaching from what Nichiren Buddhist get from the scroll they chant to enlightens them to this fact of Daimoku or The Buddha's primary teaching (according to Nichiren Shonin) The Lotus Sutra.
Their foundations are
1. The Gohonzon
2. Chanting Diamoku
3. Living the Dharma of the Lotus Sutra.
They are not similiar nor the same foundation as Catholicism. For one, Nichiren Buddhist don't believe in god nor Christ. Christ is the foundation of all Christian faiths. Second, The Gohonzon is the object of worship. To Catholics, that is idolism. Third, they live the Dharma. Catholics live the teachings of Christ and The Church.
Their expressions are embedded in their beliefs. Their foundations are severely different.
3. Hinduism (forgive me
@Vinayaka for my rudimentary knowledge
)
I went to a Hindu temple last year. Always wanted to go for years and finally went. I went inside after taking off my shoes. I entered in the middle of Puja, so I sat to the side not knowing a word of the language they spoke. After they finished, I introduced myself. They gave me a red yarn for protection of one of the goddesses. I can't remember which goddesses they were worshiping that holiday. They gave me so many fruits I could barely hold all of it in my hands.
I went to the different statues and paid my respects. The Catholic Church is high on respecting private devotion and reflection to various saints and I found that similar to Hindu respects and customs in the temple. So, looking around, I asked questions. They helped me the best they could in English.
And so on and so forth.
If you told them that Puja, the welcoming of visitors, taking off shoes (which we do in Buddhism), giving fruits, and praying to gods and goddesses are
just expressions separate from their beliefs, that is a huge disrespect and disgrading of who they are as Hinduis and how they worship.
It is not the same foundation as Catholicism.
I saw a Buddha statue there since they have Buddhist festivals in the temple. But they had no Christ statues. No Eucharist. No Quran. Actually, no Vidas, if I can recall. It was all about practice and devotion. Very welcoming.
Without these things above, they do not have a common foundation with Catholicism and Buddhism. The Buddha dislike Hinduis view of life because they incorporate gods with whom he, in various suttas, argued with to prove that their way of enlightenment isn't the right way.
If Bahai thing these religions have the same founders and the religious themselves know they don't, this is your
belief but it is not a fact. It is false. Whether you believe it is or not is not the point.
If you want to have peace and unity among other faiths, you have to respect each faith for their differing foundations. If not, do not seek peace and unity among diversity. Nothing wrong with charity to others. Just make sure when you have founders of other faiths in your religion, the religion and religious agree to your use or just don't use them at all.
Catholics do well without Hindu gods. They have charities and things of that nature. As do Buddhists and as do Hindu. They know peace does not need to have other people's faiths within their own. There are boundaries.
Unfortunately Catholics have soiled people's boundaries by death. Bahai is different in their delivery but the concept is the same.