See-er

The seeing of Truth cannot be dualistic (a "thing" seen). It cannot be seen by a see-er, or via a see-er. There can only be a seeing which itself is Truth.

Source: tatoeba (2945796)

Firſt in that Pow’r [to whoſe eternal thought / No outward object e’er one image brought, / The part, the whole, the ſee-er and the ſeen, / No diſtance, inference, or act between:] / Reason preſides, diffuſing thence abroad / Thro’ truth, thro’ things—the Teſt, the Point of God.

Source: wiktionary

Little groups of men and women […] occasionally raise their shrill clamor for a new party. It seems so easy to them to create one out of hand, and to make it perfect from the start. It would contain, by definition, all the forward-looking, all the true lovers of liberty, all the sympathetic spirits that call upon the rest to make sacrifices for the common good, all the dreamers of dreams and see-ers of visions.

Source: wiktionary

‘Seeing everything as Mind itself’ means rather ‘As Mind itself, seeing everything’: it is a displacement of the see-er from being a see-er of pseudo-objects to being ‘Mind itself’. The see-er was an object himself, and so a pseudo-see-er.

Source: wiktionary