Buttress, nor coigne of vantage, but this bird

Hath made his pendent bed and procreant cradle:

Where they most breed and haunt, I have observ’d,

The air is delicate.

Here is a picture which the reader sees as if by mere accident, and the imagination follows out each hint and goes from one salient point to another till the life-like scene rises before it. The luxuriancy and blandness of summer, the beautiful martlets filling the air as we have watched them with boyish delight a thousand times, with their noisy joy. They never appear so pretty as when coming in and out of their nests under the eaves of a house or barn, and still more in the buttresses and angles of an old castle. “Their loved mansionry” gives an additional impression of the beauty their “pendent beds and procreant cradles” add to the rough old castle which itself is brought finely out from the canvass by the light reflecting from each jutty frieze, buttress and coigne of vantage.

Banquo continues the remark with a thought expressive of an observing, nature-loving mind returning, with new pleasure, to the repose of peace and the thoughts and the occupations which there have room to unfold themselves, after the bloody tumult of brutal war.

I do not know, but I suppose it must be a truth in natural history, that the birds spoken of generally build their nests where the air is purest. See, also, the superior charm which the little observation possesses, from the lips of this noble soldier, dropped in a peaceful, sunshiny moment, skilfully thrown in after the furious storms of war, and before the yet more frightful tempest of guilt which is speedily to fall like a thunderbolt upon this group of human beings, apparently so far removed from danger, and about to commence a new era of contentment.

Remark here the people collected in a circle beneath the dark frowning battlements of the war-like castle now bathed in summer light, and in the natural ease and gentle satisfaction of their hearts discussing such beautiful trifles as, however graceful and soothing, the busy warriors of those rude times had but small time to occupy themselves with. Who are they? what are their fates? Alas they are but too striking types of their fellow creatures who in the midst of life are in death. Duncan’s hours are numbered. Beneath the walls of the castle which his aged eyes survey with such admiration—whose strong turrets and picturesque buttresses are now painted with the golden light of a calm summer afternoon—which he expects to enter to a banquet, and from which he intends to go forth in the morning with renewed hope and happiness—beneath those dire walls in a few hours is to take place a scene, the farthest possible removed from his suspicions, and he is to be called, like Hamlet, without any reckoning, into the presence of his God. Thus under the crushing and unpausing hand of Destiny the good and the bad go down alike in a world through which he will pass most easily who builds his hopes elsewhere.

Banquo too is a good man. You even perceive, in those few words, that he has a delicacy of nature which has perhaps preserved him pure from contaminating influences and illusive temptations. He too is marked, without demerit of his own, to go down beneath the wheels of the dreadful impending event.

He too, in a few brief days, is doomed to be cut off—thrust headlong into eternity, while guilt remains unhurt and triumphs in the successful execution of all its plans.