"The only way to do that is to anchor it by sustaining an incredibly focused attention on a single object for prolonged periods of time." -- This is one way. Y

"The only way to do that is to anchor it by sustaining an incredibly focused attention on a single object for prolonged periods of time." -- This is one way. You can learn to attend to your attention without the focus on a mudra or sutra, but for most people this is not the easiest entry point.