Waking in the middle of the night for Psalms: Berachot 3b-4a
Singing praise to Hashem in his 5 phases of human development: Berachot 10a
King David said to Hashem, "I am glad when I hear people wish that Shelomo was already king, to build the Temple, so that they could go there." Hashem responded, "One day of your involvement in Torah is more valuable to me than a thousand offerings which Shelomo will bring": Makkot 10a