Absolutely true. Going to Mass on Sundays is actually the bare minimum. We should also receive Communion and Penance regularly, and develop an active prayer life. Because of how much it lays out the spiritual logic of Salvation in Christ through the Church, I can't recommend the daily Rosary enough. If surrendering your life to God seems daunting, then doing these things allows Him to take over itty bit by itty bit.
I chose this image because I think it explains immediacy in a different way. The quote is what you see first, but when you look beyond it, you see more: you see Jennifer Lawrence from the Hunger Games. It shows that the quote can be transparent because you can look through it or behind it.
Don't wait until it's too late to tell someone how much you love, how much you care. Because when they're gone, no matter how loud you shout and cry, they won't hear you anymore.