At its most basic, the spiritual is the experience of the connectedness that underlies reality. The depth of that experience depends on the capacity of the individual to set aside considerations of self, thereby gaining access to connection.
The unknown is uncontrolled; no strategies exist that will enclose the endless territory of the new. Only by trusting in yourself and in this world can you get past the watchdogs of your fears and out of the iron gates of the already-known.
On either side in Time, there's nothing similar to Now, only memories or imaginings . The place you were ten seconds ago has vanished, and what is the place ten seconds ahead? There is nothing there. It's very odd.