It's possible to become dependent on anything. Some people become enthralled to their routines very easily. For example, when I was a teenager and I first started experimenting with WILDs I was convinced for some reason that it would only work if I was laying on my back although I regularly lay on my stomach. To this day if I try to WILD I just don't feel right laying in my regular sleeping position.

If you attune your mind to a specific process it can be difficult for some people to deviate from successfully.