In simple words
A transit is where a planet is in the sky now, compared with your birth chart. Here, today's Mercury makes a trine (120°) to the spot where your Sun was when you were born.
It is an easy, flowing time, and it lasts a day or two (longer when it is retrograde). Your Today page tells you when it is happening for you.
Love
You find the right words easily. Use them kindly.
A good day for honest, warm conversation.
Plan something together.
Work
Writing, teaching and presenting go well.
A good day for important messages.
Your ideas are well received.
Mood
Mentally sharp and optimistic.
Learning something new energises you.
A good day to organise your thoughts.
About the trine
A trine joins two planets one hundred and twenty degrees apart, usually in the same element. Their energies flow together smoothly. Trines show natural talents and areas of life that feel easy. The only risk is taking them for granted; a gift used on purpose becomes a strength.