There can be no end to the depth of wisdom contained in His Name, when God commanded Moses to tell the Israelites that "I AM" had sent him.
But the first, hidden-in-plain-sight, meaning must be God's absolute IMMEDIACY. That in all we time-bound creatures perceive as "now," or "the past," or "future," God IS.
God therefore deserves our absolute immediacy. As Jesus put it, that "You shall love the LORD your God with all your heart, with all your soul, and with all your mind." (Matthew 22:37).
God is absolutely Immediate to us, for us: we're called to correspondingly be to him.