Definitely not. How I view spirituality is as a process and experience of understanding and magnifying the Self through the use of various tools such as the acquiring of knowledge, meditation, mythology, symbolism, altered states of consciousness, etc. to tap into the subconscious and bring forth balance and liberation. But my spiritual path is Self-centered rather than centered on some external deity to bend the knee to or assimilate into. At best, the gods are guides and it doesn't really matter if you view them as literally existing or not, or as having an independent existence or not. Even prayer can be viewed as calling on latent powers that exist within your Self, through the lens or "mask" of your deity.