More points to inspire your conversation with God:

• The cheerfulness of a man of God, of a woman of God, has to overflow: it has to be calm, contagious, attractive…; in a few words, it has to be so supernatural, and natural, so infectious that it may bring others to follow Christian ways.  FURROW, no. 60
• “Happy?” —The question made me think. Words have not yet been invented to express all that we feel — in the heart and in the will — when we know ourselves to be children of God.  FURROW, no. 61
• I want you to be happy always, for cheerfulness is an essential part of your way.

  Pray that the same supernatural joy may be granted to us all.  THE WAY, no. 665

• Is it not true that as soon as you cease to be afraid of the Cross, of what people call the cross, when you set your will to accept the Will of God, then you find happiness, and all your worries, all your sufferings, physical or moral, pass away? Truly the Cross of Jesus is gentle and lovable. There, sorrows cease to count; there is only the joy of knowing that we are co-redeemers with Him.  THE WAY OF THE CROSS, 2nd station
• What must the cheerful way that Jesus looked upon people have been like? It must have been the same which shone from the eyes of his Mother who could not contain her joy — Magnificat anima mea Dominum! — and her soul glorified the Lord while she carried Him within her and by her side. Oh, Mother!: May we, like you, rejoice to be with Him and to hold Him.  FURROW, no. 95
• Work with cheerfulness, with peace, with presence of God. In this way you will also do your task with common sense. You will carry it through to the end. Though tiredness is beating you down, you will finish it off well; and your works will be pleasing to God.  THE FORGE, no. 744