If you don't know it, the Sevenfold Puja is probably the root ritual for the whole of our community worldwide! It's a beautiful compilation of verses from various sources, notably the Bodhicaryavatara by Shantideva. Together they make for a potent, poetic evocation of the beautiful yet rigorous spirit of the Buddhist life. Puja is designed to make the heart soar and engage the less rational parts of your being in turning towards a clear seeing of the nature of things. As Sangharakshita puts it in his celebrated talk on 'Reason And Emotion In The Spiritual Life':
"We all need to find emotional equivalents to our intellectual understandings if our spiritual practice is to progress."
We hope this helps with your own efforts!
Buy The Triratna Puja Book from Windhorse Publications