when people say “anything is possible” they are usually basking in the glory of having sought something and obtained it. this is what they feel, and its true as long as you look at it and them this way:
anything one truly, deeply, perfectly, wants from the experience-position one is in (the long complex code of their life up to now) one is perfectly suited to obtain or make happen. the people who actually succeed at “anything” do so not just because they pushed for it hardest, but because they kept opening their eyes to what they were ideally suited for and allowed their desires and directions to change even though that seemed scary.