Judging from this much of the play, what observations can we make about Shakespeare's ideas on the nature and effects of love? in A Midsummer...

In Shakespeare's play, A Midsummer Night's
Dream, we find that nature and love are
intertwined.

Nature is used to bring the Athenian lovers,
and Titania to a state of love with the potion ("love juice") found in a certain flower
(on which Cupid's arrow rested) found in the forest. (II, i,
165)

The setting of most of the play takes place in the lap
of nature, the forest. Besides being a place of enchantment after dark, it is within the
embrace of nature that the Athenian lovers are joined, separated, and finally find
much-desired love in the arms of their sweethearts.

Titania
explains that Oberon and she love human beings, and bless them with things in nature to
help and uplift them: crops, changes in the seasons, breezes, plants, etc. When Oberon
and Titania fight, these gifts from the land are not forthcoming, and humans suffer,
much to Titania's great sadness.

When Oberon describes the
place where Titania sleeps, nature seems to enfold her
lovingly.

I
know a bank where the wild thyme blows,

Where oxlips and
the nodding violet grows,

Quite over-canopied with luscious
woodbine,

With sweet musk-roses and with
eglantine.

There sleeps Titania sometime of the
night,

Lulled in these flowers with dances and
delight.

And there the snake throws her enameled
skin,

Weed wide enough to wrap a fairy in. (II, i,
249-256)

Nature provides the
setting for love which triumphs in the play.