Hi there, I can fully understand your confusion about the supposed contradiction between the concept of timelessness on the one hand and the requirement that practice be constant - along a timeline that is surely meant to be illusory if we hold the first statement to be true. Many eastern philosophies are abundant with paradoxes!
I do think that this can be reconciled in a quite simple concept - that of the present moment. If we are being fully present in everything we are doing and in every individual moment (which in a way would equate with complete and constant "meditation practice") then we are only really doing meditation "once" - we are only ever doing it "now". I know this sounds like a pretty strange concept itself, but I am convinced that a profound experience of the now, or the present actually renders our sense of sequential time illusory in the end. The past and future don't really exist in the now other than in our thoughts and mental preoccupations - only a full experience of the now is fundamentally "reality". In my experience so far, Qi Gong seems to help bring focus and presence to the mind, in a sense freeing it from the restrictions and constraints of the preoccupied mind. Is this not what is meant by becoming "lost in the moment?". Obviously concepts of enlightenment differ widely also - but for me true enlightenment would mean to be fully alive with total awareness in the present moment at all times - this would not be some abstract state to only be achieved at some vague time in the future when I'm "good enough" at meditating, for example - it would mean living a full active life in meditation - or rather in awareness.
