This is a simple method of transforming your energy and leading it upward.
It is best done at least twice a day, for twenty minutes each: in the morning just before getting out of bed and in the evening just before going to sleep.

The meditation can be done with its specific OSHO Golden Light Meditation music, which energetically supports it.
For the music availability, see below. 

Instructions:
The meditation lasts 20 minutes. The meditation is over when you hear three bells.

One stage with cycles of two parts: 20 minutes
Simply lie down, as you lie down in your bed, on your back. Keep your eyes closed.
When you breathe in, just visualize great light entering through your head into your body, as if a sun has risen close to your head – golden light pouring into your head. You are just hollow and the golden light is pouring into your head, going…going…going…deep…deep, and going out through your toes.
When you breathe in, do it with this visualization.
And when you breathe out, visualize something different: darkness entering through your toes – a great, dark river entering through your toes, coming up and going out through the head. Do slow, deep breathing so you can visualize. Go very slowly.
To repeat: breathing in, let golden light come into you through your head, because it is there the Golden Flower is waiting. That golden light will help. It will cleanse your whole body and will make it absolutely full of creativity – this is male energy.
Then when you exhale, let darkness, the darkest you can conceive, like a dark night, riverlike, come upward from your toes – this is feminine energy: it will soothe you, it will make you receptive, it will calm you, it will give you rest – and let it go out of the head.
Then inhale again, and golden light enters in.

Osho explains about this meditation:
“Always remember, Taoist methods are very simple, so don’t think, “How can such a simple thing be of such great importance?” Practice it, experiment with it and you will know. The process is:
"At least twice a day – the best time is early in the morning, just before you get out of bed. The moment you feel you are alert, awake, do it for twenty minutes. Do it first thing in the morning – don’t get out of bed. Do it there, then and there, immediately! Because when you are coming out of sleep you are very, very delicate, receptive. When you are coming out of sleep you are very fresh, and the impact will go very deep. When you are just coming out of your sleep you are less in the mind than ever. Hence there are some gaps through which the method will penetrate your innermost core. And early in the morning, when you are awakening and the whole earth is awakening, there is a great tide of awakening energy all over the world. Use that tide; don’t miss that opportunity.
“The rising of the sun is the rising of all the energies in existence. In that moment you can simply ride on the rising energy wave; it will be easier. By the evening it will be difficult, the energies will be falling back. Then you will be fighting against the current, in the morning you will be going with the current.
“So the best time to begin is in the early morning, immediately, just when you are half-asleep, half-awake. And the process is so simple. It needs no posture, no yogasana; no bath is needed, nothing.
“Do it for twenty minutes early in the morning.
“And then the second-best time is when you are going back to sleep at night."

You can participate in this and other OSHO meditations online here.

You can download the music for this meditation here.
The music is also available with a Spotify, Apple Music, and Prime Music subscription.