Only one is needed.

Only one thing is needed: a bold, firm decision to renounce everything once and for all and to surrender to God, and from this moment on, we may continually engage with Him. It must be a relationship full of trust, without great secrets, sincere and pure! This is what God desires! We need the joyful knowledge that God dwells in us, in the deepest depths of the soul, and that we can turn to Him at any moment. Here we ask Him for help to show us His will when we are uncertain; to assist us in carrying out what He commands us. We can entrust everything to Him before we accomplish it. Let us give thanks once we have completed everything.

(St. Laurence of the Resurrection, 4th conversation, November 25, 1667)