Since the Mass I attended today...
was a Votive Mass of the Holy Spirit, here is an appropriate meditation:

1. My God, I adore Thee, as the Third Person of the Ever-Blessed Trinity, under the name and designation of Love. Thou art that Living Love, wherewith the Father and the Son love each other. And Thou art the Author of supernatural love in our hearts—"Fons vivus, ignis, charitas." As a fire Thou didst come down from heaven on the day of Pentecost; and as a fire Thou burnest away the dross of sin and vanity in the heart and dost light up the pure flame of devotion and affection. It is Thou who unitest heaven and earth by showing to us the glory and beauty of the Divine Nature, and making us love what is in Itself so winning and transporting. I adore Thee, O uncreate and everlasting Fire, by which our souls live, by which alone they are made fit for heaven.

2. My God, the Paraclete, I acknowledge Thee as the Giver of that great gift, by which alone we are saved, supernatural love. Man is by nature blind and hardhearted in all spiritual matters; how is he to reach heaven? It is by the flame of Thy grace, which consumes him in order to new-make him, and so to fit him to enjoy what without Thee he would have no taste for. It is Thou, O Almighty Paraclete, who hast been and art the strength, the vigour and endurance, of the martyr in the midst of his torments. Thou art the stay of the confessor in his long, tedious, and humiliating toils. Thou art the fire, by which the preacher wins souls, without thought of himself, in his missionary labours. By Thee we wake up from the death of sin, to exchange the idolatry of the creature for the pure love of the Creator. By Thee we make acts of faith, hope, charity, and contrition. By Thee we live in the atmosphere of earth, proof against its infection. By Thee we are able to consecrate ourselves to the sacred ministry, and fulfil our awful engagements to it. By the fire which Thou didst kindle within us, we pray, and meditate, and do penance. As well could our bodies live, if the sun were extinguished, as our souls, if Thou art away.

3. My most Holy Lord and Sanctifier, whatever there is of good in me is Thine. Without Thee, I should but get worse and worse as years went on, and should tend to be a devil. If I differ at all from the world, it is because Thou hast chosen me out of the world, and hast lit up the love of God in my heart. If I differ from Thy Saints, it is because I do not ask earnestly enough for Thy grace, and for enough of it, and because I do not diligently improve what Thou hast given me. Increase in me this grace of love, in spite of all my unworthiness. It is more precious than anything else in the world. I accept it in place of all the world can give me. O give it to me! It is my life.

Venerable John Henry Newman, C.O., Meditations and Devotions