...is for people who live in the past instead of the present. They feel that their best days are behind them and that there is little to look forward to, and as a consequence they prefer to dwell on past happinesses (or past misfortunes). In a more minor key, homesickness and nostalgia are also Honeysuckle states.
The remedy helps us to learn from and recall the past without needing to relive it, so that we can progress into the present and take joy from today and tomorrow.
Dr Bach's description
Those who live much in the past, perhaps a time of great happiness, or memories of a lost friend, or ambitions which have not come true. They do not expect further happiness such as they have had.
- The Twelve Healers and Other Remedies
Quoted from http://www.bachcentre.com