“Why are you doing this?” — “It’s because I like it.”
‘Because I like it’, is a good enough reason to do something. Actually, it is the only good reason to do something. If you are doing something ‘because I’m supposed to’, or ‘it is a common sense’, or ‘it should be beneficial for me’ or ‘if I don’t do it, I’d upset someone’ etc…. No, no, no! Stop doing so unless you really like it!
…it is what I’m telling myself all the time, to follow my highest joy at each moment.
Other variation: ‘because I feel like it.’