After the headset has been in sleep mode, been taken off amidst a session or hasn't been turned on in a while, the controller may lose its center point and no longer point straight ahead. To fix this, follow these steps:
Put on the VR headset and look straight ahead in a natural, relaxed posture. You don’t need to adjust your body to match the direction the controller is pointing.
Hold the controller horizontally in front of you.
Press and hold the HOME button for more than 1 second. This is the bottom button on the front of the controller — the one with the circle icon.
If done correctly, the headset will now pull the menu into your current field of view and re-center the projected lines of the virtual controller. 🎉
All done!