The main reasons for this are:
The meditation part
Some of the sessions are so relaxed that you fall asleep and even if your mind is racing at the beginning of a practice, after a few minutes you get distracted by doing stuff. In that aspect it is like cycling for me, getting out of your head and into your body. Breathing exercises are a big part of this.
The stretching bit
Yoga is mostly about getting into positions your body doesn't want to be in. At least my body doesn't want to be twisted like that.
Sitting on my desk most of the day and then sitting on the bicycle a bit more has resulted in myself being very inflexible. The result of this is a bad back and problems with all kind of joints.
I did some physiotherapy for my back a long time ago and when I broke my collarbone. The exercises are very similar to some yoga poses. So I am just going to pretend that they work.
The workout stuff
This I just discovered after a few practices. Apparently I should have some muscles I didn't know about. I am mostly talking about the mystical core one hears about so much.
Disclaimer: I am the first to admit that I was not a big fan of yoga. I saw it as something people do that don't want to do a proper sport and can be done lying down. And it isn't about yoga, you can have the same result with other sports. But the Kata style helps, it gives you a pattern to adhere to.
So how did I start? On YouTube obviously. Because I am not quite up to embarrassing myself in front of a group of pros.
One of the cycling channels I am subscribed to had some Yoga For Cyclists videos and it is a good starting point.
It also helps that it shows a few inflexible guys in sweatpants trying to keep up with a yoga teacher.
This got me going and after a few other videos I got myself a mat and practised once in a while.
For the New Year Resolutions I picked a video series which is very easy and very chilled (at times too chilled), that provided a video for every day of January. I haven't managed to keep up, I am on 22 of 30 now. There are bits with mantras and affirmation I choose to ignore.
I am already noticing a slight improvement in flexibility and the position of my shoulders when on the road bike.
But it is early days and lets see if I can keep it up.