If it is describing a relationship of any sort, this card is indicating that everything is going well
and that the relationship is bringing happiness and joy. If you have been through a tough time, then The Lovers are telling you that the problems will blow over and that harmony will take its place.
OR... The Lovers could describe an important choice you have to make. It could be a choice between two lovers, or two jobs, or... If this is the case, often your choice will involve some sort of sacrifice. For example, if you are torn between two job opportunities; one could be paying well but work conditions are so great while the other doesn’t pay so well but offers many perks.
If it is describing an intimate relationship; one of the classic meanings of this card is the love triangle. Whether you are the victim or the offender someone is going to get hurt and choices will have to be made. If you are the victim; can you forgive and forget? Or do you need to walk away? If you are the offender; do you choose your clandestine lover or your official partner? Who do you leave behind?
The Lovers could also be describing other choices such as spiritual choices.
On the “Upside Down”side of things; this card could be warning about quarrels, infidelity, possibility of wrong choices, basically a need to stabilize emotions.