Spiritual boquets?

As my anything more than random readers will know, my other blog, FideCogitActio, is heavily theological and spiritual. This blog, however, is virtually "atheological" -- until now. By George, I have a case of theological inscitia!

Several weeks ago, months in fact, I was reading St. Francis de Sales Introduction to the Devout Life when I saw him encourage making a "spiritual bouquet" to the Lord. "Make a what?" I asked myself. I gathered from the context of St. Francis's counsel that this "bouquet" was some kind of offering to God as a symbol of thanksgiving, amended life, a vow, etc. But I really couldn't tell what such a bouquet was materially: a real bouquet of lowers? a paper cut-out bouquet of flowers? a cluster of fragrant prayers? This left me wondering, and then blogging:

INSCITIA:

What is a spiritual bouquet in Catholic piety?

COGITATIO:

I think it's a series, or cluster, of prayers either in a journal, written on slips of paper, or prayed.

RESPONDUM: